baber/WOPTO huggingface dataset:
Patent GB-1224069-A (GB)
Title: Electric circuit arrangement for producing a three-phase or polyphase alternating-current system
IPC: H03K5/15
Filed: 1968-12-13
Abstract: 1,224,069. Automatic frequency control. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. 13 Dec., 1968 [15 Dec., 1967], No. 59512/68. Heading H3A. A polyphase system, the waveform of which can be programmed as desired, and the frequency and phase of which can be modulated, uses electronic samplers driven by ring counters and is characterized in that:- (a) For each phase there is provided a voltage controlled oscillator 18, 19, 20, an n-stage ring counter 10, 11, 12, a sampler 13, 14, 15 and an amplifier 21, 22, 23, the inputs of the samplers being connected to a crossbar distributer 16 having a specific voltage associated with each crossbar. (b) Bi-stable circuits 24, 25 are connected between pairs of counters 10, 11, 12 to provide a phase control signal. (c) Means 26, 27 are provided to form from the phase control signal a further signal V ist  which is compared with a reference signal U soll  to provide an error signal for controlling the associated oscillator 19, 20. Appropriate stages are selected on counters 10, 11 to provide antiphased signals for switching bi-stable circuit 24 to its " set " and " reset " states respectively, thus producing a square wave output signal having a mark/space ratio indicative of the phase relationship of the signals in the two channels R.S. This signal is processed in units 26 to provide the signal V ist  dependent on the phase relationship. In the event of an input pulse to the counters being omitted, a logic circuit (31, Fig. 3, not shown) controls a circuit (30) to feed a pulse back from the output to the input. In order to ensure that no more pulses are contained in the counter 10 when a pulse has reached the output, a quenching circuit (33, 34) clears all stages except the first and last.
Patent GB-1410969-A (GB)
Title: Gas scrubber
IPC: B01D47/06
Filed: 1972-12-28
Abstract: 1410969 Gas scrubber COMBUSTION ENG INC 28 Dec 1972 [30 Dec 1971] 59838/72 Heading B1R A wet gas scrubber comprises a housing 10 with a gas inlet 12 and gas outlet 13 a multisectioned bed of contact material 15 positioned within the housing, scrubbing liquid spraying apparatus 16 for directing liquid into the packing, the bed comprising a plurality of rectangular modules 20 having one pair of opposite sidewalls 23 inwardly inclined so that troughs 31 are formed between adjacent modules in the assembled condition, support means 34, 35, 36 for supporting the modules within the housing 10 and overflow passages 32 connecting with drain pipes 33 for removing overflow liquid from the troughs 31. The base 20 of each module has perforations and may be corrugated so that in use liquid can be sprayed upwardly into the modules and can overflow into the troughs to be drained away to an outlet 14. A spray eliminator 18 is placed downstream of the beds, and the contact material may be glass marbles.
Patent GB-1416868-A (GB)
Title: Synthetic pulp
IPC: D01F6/46
Filed: 1971-12-31
Abstract: 1416868 Fibrillating polyolefin films CHISSO CORP 27 Nov 1972 [31 Dec 1971] 60919/71 Heading B5B [Also in Division D2] A film of thickness 70 microns or less is made from a composition comprising from 50 to 90 parts by weight of polypropylene having a meltflow rate of from 30 to 150 and from 50 to 10 parts by weight of a low density polyethylene. This film is then stretched uniaxially to at least 8 times its original length, cut into lengths of 5 mm. or less and fibrillated mainly by the action of blows and a whirling air stream. The fibrillation is best conducted in the apparatus illustrated in Fig. 1. This comprises a cylindrical casing 1 having on its inner peripheral curved surface a series of longitudinal projections 14. Shaft 2 is rotatably mounted in the casing 1 and bears a plurality of rotors 17, 18 each of which comprises a disc, e.g. 3, bearing a plurality of vanes 6 parallel to the axis of the casing and each giving a clearance of 3 to 10 mm. with projections 14. Each vane bearing disc, e.g. 3, has two discs, e.g. 8 and 9, one on each side assisting in the support of the vanes. These discs 8 and 9 are of smaller diameter than that of the complete rotor.  In addition to these rotors shaft 2 bears at its inlet end a vane wheel 19 comprising a disc 12 having vanes 13 mounted on it. This has the function of sucking air laden with film slices through inlet 15 and thence to the rotors where it is fibrillated.
Patent GB-782800-A (GB)
Abstract: 782,800. Franking machines; selective printing TELEFONBAU UND NORMALZEIT GES. Feb. 14,1956 [June 13, 1955], No. 4568/56. Classes 100(2) and 100(4) A device for setting a printing apparatus to numerical values each of which is representable by a whole number, a mixed number, or a fraction of a unit value, comprises a plurality of setting members 20, 21, 22 so arranged that a part of a series of whole number values is settable by one of the setting members 21 and another part of the series of whole number values, together with mixed numbers intermediate the whole numbers of the other part of the series, and a fraction or fractions of a unit value, is setable by another of the setting members 22, locking means being provided which permit a displacement of the setting member 21 only when by means of the member 22 a fraction of a unit value or no value at all has been set. As shown in Fig. 1 the members 20, 21, 22 are embodied in a franking machine and are adapted to set type wheels 16 through gearing 17. The members 21, 22 are recessed to form a cavity 34 (Figs. 2 and 3) in which a disc 32 is located for axial movement only. The disc is provided with a circumferential recess which accommodates a pin 30 associated with the member 22, the recess being provided with a ramp so that if the member 22 is rotated beyond a fraction of a unit value the pin 30 engages the ramp. The disc is also provided with a ring 37 which is provided with a slot aligned with a pin 31 associated with the member 21 when the latter is in a zero position, so that axial movement of the disc can only take place when the member 21 is set at zero. Thus unless the member 21 is set at zero the member 22 cannot be set past a fraction of a whole number value since the pin 31 prevents axial movement of the disc 32 when the pin 30 engages the ramp. Conversely the member 21 cannot be set at any other value than zero if the member 22 has caused axial movement of the disc. In a second embodiment (Figs. 8 and 10) the gears 17 associated with the setting members 21, 22 mesh with gears 58, 59 which operate coaxial cams 51 and 52 respectively. Co-operating with the cams is a two armed locking lever 50 normally spring biased so that the hook 55 on one arm engages in a recess 53 in the cam 51 associated with the setting member 22. A hook 56 is provided on the other arm of the lever 50 for engagement with a recess 54 in the cam 52 associated with the member 21. Thus if the setting member 22 is rotated to an extent that the hook 55 rides out of the recess 53 so that the hook 56 engages in recess 54, movement of the setting member 21 is prohibited, and conversely, if member 21 is first set to a position other than zero movement of the member 22 is restricted to those values corresponding to the peripheral length of the recess 53. In a third embodiment (Fig. 12) the members 21 and 22 are provided with recesses 67 which co-operate with a semicylindrical part 66 of a manually rotatable locking pin 65.
Patent GB-2026066-A (GB)
Title: Sun awning
IPC: E04F10/08
Filed: 1978-07-12
Abstract: A sun awning for a building structure comprises a plurality of brackets 10 constituting a supporting frame which each have a projecting cantilever arm 12 formed with a series of separate inclined slots 24 which open at one end through a free edge 16 for receiving a set of slats 30. The slats 30 extend between the brackets 10 as an array in parallel spaced-apart louvre formation and elongate cover strip members 36 of resilient plastics material having a channel shaped cross-section are fitted along the free edges of the bracket arms to close the open ends of the slots 24 so as to retain the slats 30 in place. The slots 24 are lined with pads 26 adapted to frictionally engage and hold the slats inserted therein to prevent movement and rattling. Each slat 30 also has a locating notch 34 to engage the closed end of the respective slot 24. <IMAGE>
Patent GB-2003315-A (GB)
Title: Fluorescent discharge lamps
IPC: C09K11/64
Filed: 1978-08-18
Abstract: In a low-pressure mercury vapour discharge lamp having a luminescent layer in which the power consumed is at least 500 W/m<2>, for satisfactory operation, the luminescent layer is so chosen as to comprise a luminescent material which has a luminous flux with 254nm excitation, which after the material has been subjected for 15 minutes to ultraviolet radiation consisting substantially of the wavelengths 185 and 254 nm, having a radiation density between 150 and 500 W/m<2> and having a ratio of 185 nm power to 254 nm power between 0.20 and 0.40, is not more than 5% lower than the initial luminous flux of the material at 254 nm excitation and measured under identical circumstances, and wherein the combination of cations in the luminescent material has an electro- negativity of not more than 1.4. Numerous examples of known luminescent material compositions, which are said to satisfy these criteria, which generally relate to maintenance of luminous flux and resistance to degrading by mercury, are given.
Patent GB-2004357-A (GB)
Title: Heat transfer systems
IPC: F25B41/00
Filed: 1978-09-12
Abstract: Closed-circuit processes and apparatus, for the transfer of heat, in which a refrigerant is successively compressed by a rotary vane compressor (10b), condensed in a condenser (12b) through the removal of heat, throttled by a primary expansion restrictor (14b), and vaporised in an evaporator (16b) through the take-up of heat, before being again compressed by said compressor (10b), characterised in that the coefficient of performance is improved by throttling condensed refrigerant in one or more additional stages by respective additional expansion restrictors (18b and 44b), which may be located in series (18b) and/or in parallel (44b) with the primary expansion restrictor (14b) and the evaporator (16b), with at least a proportion of the refrigerant vapour produced at the or each of said additional stages being returned (52 and 22b) to an intermediate port of said compressor (10b), where it combines with refrigerant vapour which is already being compressed. <IMAGE>
Patent GB-2024666-A (GB)
Title: Industrial sulphur trioxide gas injection probe and method of manufacture
IPC: F23J15/00
Filed: 1978-09-14
Abstract: An industrial SO3 gas injection probe comprises a metallic sheathing 16, a gas conveying pipe 12 mounted therein with a refractory 18 located therebetween. Nozzles 14 extend between the pipe 12 and the sheathing 16. The probe is made by positioning the pipe 12 within the sheathing 16 with the nozzles in position and casting the refractory therebetween. <IMAGE>
Patent GB-2044801-A (GB)
Title: Electrodepositing nickel over alkaline cell electrodes
IPC: C25D7/00
Filed: 1978-09-25
Abstract: Manufacture or treatment of alkaline cell electrodes or plates (especially negative electrodes) in which the electrodes whether in the charged or discharged state are subject to an electro-deposition of nickel over the exterior surface area of the electrodes. The electrodes are preferably subject to a high current density for short duration nickel plating ("flash nickel" plating). The treatment has particular practical application to sintered nickel electrodes impregnated with cadmium hydroxide, i.e. for sealed nickel cadmium cells as well as to sintered zinc electrodes. The invention includes electrodes when so manufactured or treated and also cells or batteries containing them.
Patent GB-2006197-A (GB)
Title: Alkylthiophenoxypropanolamines
IPC: C07C67/00
Filed: 1978-10-02
Abstract: Alkylthiophenoxypropanolamines of the general formula:-   <IMAGE> (A,B,R = H,C1-4 alkyl; R1=C1-8 alkyl R2 = C6-12 alkyl, (C5-8 cycloalkyl) - (C2-6 alkyl) ) and the pharmaceutically acceptable acid addition salts thereof increase peripheral blood flow, relax vascular smooth muscle, and inhibit platelet aggregation. They may be administered in the form of pharmaceutical preparations for the treatment of obstructive cerebrovascular deficiencies.
Patent GB-2008514-A (GB)
Title: A rig for a sailing boat
IPC: B63H9/06
Filed: 1978-10-19
Abstract: A rig for a sailing boat consists of a mast 1, a wishbone boom 12 projecting ahead of the mast, and two sails 3 of flexible material and identical shape, which are attached to the boom on either side of the mast. The sail combination is inflated into a solid aerofoil shape because part of the airflow enters through a gap between the luffs, which are situated forward of the mast, and is then constrained on exit by the pair of leeches which are joined close together. This arrangement overcomes a major disadvantage of single-sail versions of the balanced lugsail rig, which suffer from serious loss of efficiency when the sail is on the tack with it lying to windward of the mast. <IMAGE>
Patent GB-2041055-A (GB)
Title: Fixing of cladding to structural members
IPC: E04B1/94
Filed: 1979-02-01
Abstract: A fixing device 3 wedged between the flanges of structural metal members 1, for the attachment of cladding boards 5 (particularly boards for decoration and/or fire protection), comprises an outward facing fixing plate 6 parallel to the web (to which the boards are attached) and a pair of serrated surfaces which bite into the flanges, or into interposed packing strips 11 when installed in position. <IMAGE>
Patent GB-2016679-A (GB)
Title: Chemiluminescence Gas Analysing Apparatus
IPC: G01N21/76
Filed: 1979-03-16
Abstract: Reaction chambers 2 and 4, each have a window, aligned with which are branched ends 50 of a Y-shaped bundle 52 of optical fibres whose other ends 54 supply photomultiplier tube 56, which may thus be remotely situated and thereby protected from heat needed to remove moisture etc or to promote the reaction. In determining nitrogen dioxide in a mixture with nitric oxide, the mixture is supplied via lines 16, 18, the former including catalytic converter 24. Ozone is supplied via inlets 12. Chopper 48 provides for a difference signal from the detector, and may include a section permitting dark current measurement for drift correction. Hydrogen sulphide may be measured. The chopper may alternatively be adjacent the detector, Fig. 3 (not shown). A single chamber, single light guide arrangement Fig. 2 (not shown) uses a photodiode as detector. Filters may be provided and may form the windows or chopper elements. <IMAGE>
Patent GB-2019462-A (GB)
Title: Method and Apparatus for Producing Stitch Reinforced Fabric
IPC: D04H3/115
Filed: 1979-03-21
Abstract: The present invention relates to the production of non-woven stitch- reinforced fabric. Known methods involve carding of the fibres which increases production costs. The present invention provides a method of producing a non-woven stitch reinforced fabric comprising continuously feeding a tow 1 of continuous filament fibres, spreading said tow 1 of continuous filament fibres into a web 4, applying said web 4 to a carrier 5, preferably by cross- lapping, for feeding to the stitching head 3, and stitching the web 4 of continuous filament fibres with rows of stitching in a direction generally transverse to the continuous filament fibres of the web and preferably parallel to the machine direction of the web to produce the stitch reinforced fabric. The invention also provides an apparatus having means 8, 9, for continuously supplying the tow 1 to a spreader device 2 for forming the tow 1 into a web 4. The spreader device 7 feeds the web 4 onto a carrier 5 to a stitching head 3 arranged stitching parallel rows of stitching in the web 4 generally transversely of the fibres. <IMAGE>
Patent GB-2036291-A (GB)
Title: Boiler control systems
IPC: F23N1/02
Filed: 1979-05-04
Abstract: A boiler control system comprises an oil burner (22), one or more electrically operated oil-injecting devices (28) for injecting oil into a combustion chamber (24) of the oil burner (22), and means (42) for controlling the ON/OFF time of the or each oil-injecting device (28). Signals from water thermostat (44) cause control system (42) to vary the mark/space ratio of pulses fed to piezoelectric device (36) thus controlling the rate of fuel flow through nozzle (28). <IMAGE>
Patent GB-2056365-A (GB)
Title: Means for mounting a power saw upon a base
IPC: B27B5/20
Filed: 1979-05-10
Abstract: The mounting means permits a power saw supported therein to be rotated in a horizontal plane and tilted in a vertical plane to perform various functions and to be inverted in the mounting means to perform additional functions. The saw is clamped to a cradle by a pair of clamps 14, 20 mounted on a pair of slide bars 18, 19 passing through a guide 12. One limb 18a of the bar 18 extending further on one side of the guide than the other bar 19, with the clamp 20 being mounted on the limb 8a and the clamp 14 being fixed to the two bars on the one side of the guide 12. <IMAGE>
Patent GB-2026773-A (GB)
Title: Process for the manufacture of tantalum solid electrolyte capacitors
IPC: H01G9/00
Filed: 1979-06-19
Abstract: The invention is directed towards reducing the cost of the accelerated ageing operation in the course of manufacture of tantalum solid- electrolyte capacitors. The ageing is carried out by dipping the capacitors into a bed of pulverous semiconducting material connected to the negative terminal of a stabilised- voltage source, of which the positive pole is connected to the anodes of the capacitors. The voltage is maintained between 1.2 and 1.8 times the rated voltage of the capacitor and the temperature is maintained between 25 DEG C and 180 DEG C for a minimum period of two hours.
Patent GB-2027824-A (GB)
Title: Control apparatus for a stepless speed changer
IPC: F16H61/26
Filed: 1979-08-03
Abstract: A control cable 24 connected to a movable pulley (not shown) for adjusting a steplessly variable belt drive is subject to a continuous pull towards the left so that a plate 22, which is pivotally connected at 23 to the cable and loaded by a spring 30, is caused to tilt, as shown, and thereby jam on an axially fixed shaft 21. A selector lever 19 is pivotally mounted on the shaft and connected by a link 27 to a member 26 which is slidable on the shaft and has portions 26a, 26b engageable with the plate 22 to release the latter for operation of the cable 24 by the lever 19. Movement of the lever to rotate the shaft 21 actuates another cable 29 controlling a forward/reverse gear. <IMAGE>
Patent GB-2028467-A (GB)
Title: Check Valve
IPC: F16K15/03
Filed: 1979-08-06
Abstract: A check valve has a pair of valve members (42, 43) hingedly mounted to a transverse pin (26) which engage a valve seat (18, 22). Torsional springs (50) to bias the valve members (42, 43) to their closed positions comprise a single length of wire formed into three windings (54, 55 not shown, 56) two of which (54, 55) separately apply a biasing force to the respective valve members (42, 43) while the third (56), being between the other two (54, 55), is wound on an axis offset from the axes of the other two, the arrangement being such as to substantially prevent dissipation of stored compressive energy from either of the respective co-axial windings to the other. A bearing arrangement for valve pins which are of a material harder than the valve body has, the pins supported in plates not shown of a material of hardness similar to the material of the pins (26, 28) set into the internal wall (40) of the valve body (12). <IMAGE>
Patent GB-2057197-A (GB)
Title: Dynamo electric machine with ring rotor
IPC: H02K25/00
Filed: 1979-08-25
Abstract: An electrical machine operated by means of solenoids 2 revolving a ring 1 composed of alternate segments of magnetic and non magnetic materials to be used as a motor. The solenoids 2 are sequentially connected by means of a distributor 6. This motor is capable of having a number of drives taken from the ring by means such as cog or friction wheels driven from the inner or outer edge of the ring. <IMAGE>
Patent GB-2063440-A (GB)
Title: Tumbler Dryer
IPC: D06F34/18
Filed: 1979-10-01
Abstract: A tumbler dryer has a clothes drum mounted to rotate in a casing about a horizontal axis. The drum is driven by a motor mounted in the casing at least partially below the drum. The drum and casing have a space between their rear walls and in this space are located co-operating stationary and moving dryness sensor contacts. The moving contact is mounted on the end of the drum facing the space and is connected to a dryness sensor or sensors located in the drum. <IMAGE>
Patent GB-2041839-A (GB)
Title: Flexible Covering of Load Vehicles
IPC: B60J7/06
Filed: 1979-10-18
Abstract: The side cant rails 25 are adapted for retraction towards the central cant rail 15 by movement of the upwardly opening curtain side 21. The curtain conveniently carries means (such as hooks 72 or wheeled carriers running on a track) by which the side cant rails are retracted when the curtain sides are themselves retracted towards the central cant rail. <IMAGE>
Patent GB-2037839-A (GB)
Title: Method of Insulating Greenhouses
IPC: A01G9/22
Filed: 1979-11-07
Abstract: A method of insulating a greenhouse against loss of heat includes the provision of a polythene tent-like structure suspended inside the greenhouse spaced apart from the roof and walls thereof the walls of the structure contacting the floor of the greenhouse and one wall including an entrance flap.
Patent GB-2043453-A (GB)
Title: Improvements in or relating to an electrode
IPC: A61N1/05
Filed: 1980-02-11
Abstract: A prosthesis electrode for electrically stimulating body tissue has a metal tip 12 (e.g. Ag, Hg, W) covered by a non-metallic coating 13 composed of a compound of the metal in the tip (e.g. AgCl, Hg2Cl2, WO2/W2O5). Covering the non- metallic coating is an ion-conducting membrane 14 which is non- toxic to body tissue (e.g. of organic polymers such as cross-linked polystyrene). The membrane 14 prevents the metal tip 13 and the non- metallic coating 14 from contacting the body tissue and prevents transference to the body tissue of ions which enter into undesirable reactions there. The electrode is for use with alternate positive and negative electrical pulses.
Patent GB-2072258-A (GB)
Title: Conical rotary valves for internal combustion engines
IPC: F02B1/04
Filed: 1980-03-20
Abstract: An inlet passage (5) and an exhaust passage (6) lead through the housing (1) and open at circumferentially displaced positions in the space which receives the valve member (2). There is also a cavity communicating with this space which will enclose a spark plug. The valve member (2) incorporates ports (8 and 9) which will communicate with the passages (5 and 6) as the valve member is rotated by a drive mechanism connected to a spigot (3) in such a manner that the inlet port (5), the cavity incorporating the spark plug, and the exhaust port (6) will register in a predetermined sequence with the conical chamber (7) defined within the valve member (2). <IMAGE>
Patent GB-2057261-A (GB)
Title: Hair conditioning composition and method
IPC: A61K8/73
Filed: 1980-07-01
Abstract: An aqueous composition useful for conditioning hair consisting essentially of an aqueous carrier containing a cationic polymer and amphoteric surfactant in specified proportions and having a pH in the range of from about 1 to about 6.
Patent GB-2054336-A (GB)
Title: Animal footbath
IPC: A01K13/00
Filed: 1980-07-04
Abstract: An animal footbath comprises a trough (10) along which the animals pass and a perforate inner floor (24) raised above the bottom of the trough so that muck from the animals' feet falls through and is not stirred up by the hooves. Also it reduces spillage and splashing. The perforate floor slopes downwardly on either side (26) of a central line so that the hooves are spread as the animal proceeds. <IMAGE>